kallithea Files · rhodecode/lib/vcs/utils/lazy.py

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Marcin Kuzminski

fix for issue #578 git hooks sometimes cannot be executed due to different python they runned under, this commit tries to fix that by altering the PATH env variable using current python that rhodecode is running

class LazyProperty(object):
    """
    Decorator for easier creation of ``property`` from potentially expensive to
    calculate attribute of the class.

    Usage::

      class Foo(object):
          @LazyProperty
          def bar(self):
              print 'Calculating self._bar'
              return 42

    Taken from http://blog.pythonisito.com/2008/08/lazy-descriptors.html and
    used widely.
    """

    def __init__(self, func):
        self._func = func
        self.__module__ = func.__module__
        self.__name__ = func.__name__
        self.__doc__ = func.__doc__

    def __get__(self, obj, klass=None):
        if obj is None:
            return self
        result = obj.__dict__[self.__name__] = self._func(obj)
        return result